LG PS-M550WP, Service Manual, Page: 20 / 32

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5
Major components Disassemble
Assemble and Repair instruction
4. Remove Main PCB Wire.
(Please be careful not to damage the Main PCB
Wire when removing the Front Case Assembly.)
5. Remove 4 screws from the Main PCB using a screw
).
(You can also replace gas sensor, dust sensor, remote
control sensor.)
6. Remove a screw from the Control PCB Case using a
screw ).
(Remove 2 screws from the Power PCB using a screw
).)